package com.kuang.springcloud.controller;

import com.kuang.springcloud.pojo.Dept;
import com.kuang.springcloud.service.DeptService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;

import java.util.List;

//提供Restful服务
@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    @GetMapping("/dept/get/{id}")
    @HystrixCommand(fallbackMethod="hystrixGet")
    public Dept get(@PathVariable("id") Long id) {
        Dept dept = deptService.queryById(id);

        if(dept==null) {
            throw new RuntimeException("id=>"+id+", 不存在该用户，或者信息无法找到~");
        }

        return dept;
    }

    //备选方案
    public Dept hystrixGet(@PathVariable("id") Long id) {
        return new Dept()
                .setDeptno(id)
                .setDname("id=>"+id+"没有对应的信息，null--@Hystrix")
                .setDb_source("no this database in Mysql");
    }
}
